For what it’s worth, here’s another way to extract tokens from an input string, relying only on standard library facilities. It’s an example of the power and elegance behind the design of the STL. Instead of copying the extracted tokens to an output stream, one could insert them into a container, using the same generic copy algorithm. … Read more
Msdn documentation explicitly tells you (a) in which header file a function is declared and (b) which header file you are supposed to include. Most functions tell you to include windows.h, for example SendMessage Some function, that were added later or have very specific use cases, are only available through other header files, for example SetupDiEnumDeviceInfo. So no, … Read more
In C++11 you can use std::to_string: If you’re working with prior to C++11, you could use C++ streams: Taken from http://notfaq.wordpress.com/2006/08/30/c-convert-int-to-string/
In case with char*, std::cin.getline getting line, instead of std::cin getting first word.
fopen_s is a “secure” variant of fopen with a few extra options for the mode string and a different method for returning the stream pointer and the error code. It was invented by Microsoft and made its way into the C Standard: it is documented in annex K.3.5.2.2 of the most recent draft of the C11 Standard. Of course it … Read more
std::bitset has a .to_string() method that returns a std::string holding a text representation in binary, with leading-zero padding. Choose the width of the bitset as needed for your data, e.g. std::bitset<32> to get 32-character strings from 32-bit integers. EDIT: Please do not edit my answer for Octal and Hexadecimal. The OP specifically asked for Decimal To Binary.
The error you offer, error: expected initializer before ‘namespace’ suggests that there is a structure or variable declaration that isn’t terminated. Something like: Here, the ‘struct foo’ declaration isn’t terminated with a semicolon. This should read: Getting the preprocessor involved (using #include) makes this type of thing a bit harder to track down. It may be that … Read more
Firstly, you use both ar and arr, while arr is an array and ar is a list. This is both confusing to the reader and (it turns out) to the code author. In C++, std::list doesn’t have random access. You cannot use ar[], since operator[] is not defined for lists. Further, largestOfArray expects an array, not a list. You probably intended to use arr there instead of ar.
You can use IDA Pro by Hex-Rays. You will usually not get good C++ out of a binary unless you compiled in debugging information. Prepare to spend a lot of manual labor reversing the code. If you didn’t strip the binaries there is some hope as IDA Pro can produce C-alike code for you to work with. Usually it is … Read more
From the link above: Several of these types can be modified using the keywords signed, unsigned, short, and long. When one of these type modifiers is used by itself, a data type of int is assumed This means that you can assume the author is using ints.